51 g (0140 M ol) of chlorinated chloride and 76.5 g (0.26 M ol) sodium benzoate were put into four flasks, adding 230 m L of water and an appropriate amount of phase transfer catalyst, stirring and warping, controlled at 100 ~ 103 ° C, same current4h, cooling and static layering, retaining esterified mother liquor; neutralizing with dilute sulfuric acid, filtered over , recovered excessive addition of benzoic acid.The resulting benzyl ester was administered to the reaction flask, 50 m L of water was added and the phase transfer catalyst was added, and 70 g (0.26 m oL) was added dropwise to 30% NaOH, and the reaction temperature 102 to 105 ° C was hydrolyzed for 3 h.After cooling and standing, the organic phase is divided into the organic phase to obtain a crude alcohol, weigh, and analyze its content.Bradoxyl methanol is distilled with reduced pressure.
51 g (0140 M ol) of chlorinated chloride and 76.5 g (0.26 M ol) sodium benzoate were put into four flasks, adding 230 m L of water and an appropriate amount of phase transfer catalyst, stirring and warping, controlled at 100 ~ 103 ° C, same current4h, cooling and static layering, retaining esterified mother liquor; neutralizing with dilute sulfuric acid, filtered over , recovered excessive addition of benzoic acid.The resulting benzyl ester was administered to the reaction flask, 50 m L of water was added and the phase transfer catalyst was added, and 70 g (0.26 m oL) was added dropwise to 30% NaOH, and the reaction temperature 102 to 105 ° C was hydrolyzed for 3 h.After cooling and standing, the organic phase is divided into the organic phase to obtain a crude alcohol, weigh, and analyze its content.Bradoxyl methanol is distilled with reduced pressure.
, recovered excessive addition of benzoic acid.The resulting benzyl ester was administered to the reaction flask, 50 m L of water was added and the phase transfer catalyst was added, and 70 g (0.26 m oL) was added dropwise to 30% NaOH, and the reaction temperature 102 to 105 ° C was hydrolyzed for 3 h.After cooling and standing, the organic phase is divided into the organic phase to obtain a crude alcohol, weigh, and analyze its content.Bradoxyl methanol is distilled with reduced pressure.
, recovered excessive addition of benzoic acid.The resulting benzyl ester was administered to the reaction flask, 50 m L of water was added and the phase transfer catalyst was added, and 70 g (0.26 m oL) was added dropwise to 30% NaOH, and the reaction temperature 102 to 105 ° C was hydrolyzed for 3 h.After cooling and standing, the organic phase is divided into the organic phase to obtain a crude alcohol, weigh, and analyze its content.Bradoxyl methanol is distilled with reduced pressure.
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